TY - JOUR
AU - Guerra, A., A.
AB - Abstract Trichlorfon and Bay S-2217 (2-choroethyl methyl (2,2,2-trichloro-1-hydroxyethyl) phosphonate) were about equally toxic to larvae of the tobacco budworm, Heliothis virescens (F.), and trichlorfon and ethyl trichlorfon (diethyl (2,2,2-trichloro-l-bydroxyethyl) phosphonate) were equally toxic to larvae of the bollworm, H. zea (Boddie). However, trichlorfon was more toxic to tobacco budworms when it was applied a an ultra low volume spray (ULV, ½ gal or less per acre without water) than when it was used as a conventional spray (CLV, more than ½ gal per acre with water). Vapors of dichlorvos from impregnated wafers killed all moths of the pink bollworm, Pertinophora gossypiella (Saunders), within 24 hours for 19 days. The ULV sprays of naled formulated with some adjuncts maintained 57% or more of the applied naled on the surface of cotton leaves for 24 hours, but none remained on the surface more than 2 hours when the naled was applied as a CLV spray. This content is only available as a PDF. Author notes 1 Lepidoptera: Noctuidae. 2 Lepidoptera: Gelechiidae. 3 In cooperation with the Texas Agricultural Experiment Station, Texas A&M University, College Station 77843. 4 Mention of a pesticide or a proprietary product does not constitute recommendation or endorsement by the USDA. © 1972 Entomological Society of America
TI - Toxicity of Seven Alkyl Organophosphorus Insecticides to the Bollworm, Pink Bollworm, and Tobacco Budworm and Persistence of Naled in Various Formulations on Cotton leaves
JF - Journal of Economic Entomology
DO - 10.1093/jee/65.5.1377
DA - 1972-10-01
UR - https://www.deepdyve.com/lp/oxford-university-press/toxicity-of-seven-alkyl-organophosphorus-insecticides-to-the-bollworm-Fd0GLSeqZS
SP - 1377
VL - 65
IS - 5
DP - DeepDyve
ER -